Antenna with integral sealing member for a radar-based level...

Communications: directive radio wave systems and devices (e.g. – Determining distance – Material level within container

Reexamination Certificate

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C324S644000, C342S175000

Reexamination Certificate

active

10956959

ABSTRACT:
An antenna assembly suitable for use with a microwave-based level measurement system mounted on a vessel. The antenna assembly comprises a rod antenna having a mounting member with an integral sealing ring. The antenna is molded from a conductive polymer such as PTFE. The sealing ring is also formed from the same polymer as the antenna. The sealing ring may be formed as an integral component of the mounting member molded from a polymer material or as a separate ring element which is welded or otherwise affixed to the mounting member. The antenna assembly is coupled to the level measurement apparatus using a clamping mechanism. As the clamping mechanism is secured to the mounting member, the sealing ring is compressed and deflected and in the compressed state provides a seal between the level measurement apparatus and the section of antenna extending into the vessel. According to another embodiment, the antenna assembly is adapted for and mounted in a horn antenna. The horn antenna is coupled to the level measurement system and extends into the vessel.

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